Results 41 to 50 of about 13,212 (235)

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Gbit/s Transceiver for 1 mm PMMA-POF

open access: yes, 2022
S.199-202In this paper the realization of a 1.25 Gbit/s transceiver for 1 mm diameter PMMA-POF up to 50 m link length is described. In spite of the fact, that some research groups already demonstrated the possibility of high-speed transmission over ...
Tschekalinskij, W.   +3 more
core  

An Investigation into the Flow of Rotating Orifices with Euler Angle and the Calculation Model of Discharge Coefficient Considering the Effect of Comprehensive Incidence Angle

open access: yesAerospace, 2022
As a typical flow element in an aero-engines, orifices play a vital role in the distribution and control of the mass flow rate within the secondary air system.
Jie Wang   +3 more
doaj   +1 more source

Life cycle assessment of biodiesel synthesis from waste cooking oil using bifunctional heterogeneous catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The development of renewable energy sources is important in order to achieve the United Nations Sustainable Development Goals (SDGs). Waste cooking oil (WCO) is a promising feedstock for biodiesel production through transesterification. Heterogeneous bifunctional catalysts offer a sustainable alternative to conventional homogeneous bases such ...
Frederick Jit Fook Phang   +9 more
wiley   +1 more source

Quasi-distributed fiber bend and temperature measurement in femtosecond laser-structured POF

open access: yes, 2022
S.279-284We proposed focusing femtosecond laser pulses into the core material of standard PMMA POF to create localized scattering damage for application in quasi-distributed sensing using optical time domain reflectometry.
Liehr, S., Burgmeier, J., Krebber, K.
core  

One‐Pot Spray Pyrolysis Fabrication of Multi‐Phase Lithium Manganese Oxide Microsphere Cathodes for Enhanced Lithium‐Ion Battery Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Sr‐LMO microspheres were synthesized by one‐pot spray pyrolysis, forming multi‐phase lithium manganese oxide with Sr‐doped LiMn2O4, Sr2Mn2O5, and Li2MnO3‐like domains. This structure refines particles, suppresses Jahn–Teller distortion, and adds Li+ pathways, delivering superior cycling stability and rate performance over undoped and commercial LMO ...
Jae Hyeon Choi   +7 more
wiley   +1 more source

Adaptive integrated PAM2 mixed-signal equalizer for SI-POF home networking links

open access: yes, 2022
S.99A low-power mixed-signal adaptive PAM-2 equalizer IC on 180 nm CMOS is presented. Its functionality is demonstrated by successful 1.25 Gbit/s-transmission over up to 50 m SI-POF using 650 nm ...
Offenbeck, Bernd   +6 more
core  

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng   +4 more
wiley   +1 more source

Broadband cable television transmission with multiple analog and digital channels using GI-POF

open access: yes, 2022
S.195-198POF has the potential to become the universal transmission medium of future home networks. In this paper the possibilities of GI-POF for cable television (CATV) transmission up to 862 MHz are investigated.
Tschekalinskij, W.   +4 more
core  

Nilai Filosofis Makanan Tradisional Etnik Betawi untuk Pendidikan Karakter

open access: yesJurnal Humanitas: Katalisator Perubahan dan Inovator Pendidikan
Traditional food not only serves to fulfill biological needs, but also contains cultural values that reflect the identity of an ethnic group, including the Betawi ethnic group. Amidst the currents of globalization and modernization, traditional culinary
Adinda Hanna Humaira   +2 more
doaj   +1 more source

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